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Finding the Fourth Proportional to 61,740.01, 85,113.95 and 43,828.48

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Solution

The fourth proportional to 61,740.01, 85,113.95 and 43,828.48 is: 60,421.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,740.01 : 85,113.95 = 43,828.48 : x
  2. Step 2: Convert to fraction form
    61,740.01/85,113.95 = 43,828.48/x
  3. Step 3: Cross multiply
    61,740.01x = 85,113.95 × 43,828.48
  4. Step 4: Simplify right side
    61,740.01x = 3,730,415,055.30
  5. Step 5: Solve for x
    x = 3,730,415,055.30/61,740.01
  6. Step 6: Final answer
    x = 60,421.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.